There is little that needs to be said about Iron Man 3. It is one of the biggest super hero franchises around and the buzz for the third installment is deafening. Additionally, its reviews are outstanding. Finally, there are some early international numbers, which are in some cases record-breaking. I'm tempted to bump this film's box office potential to $400 million, but I'm going to be a little more cautious and leave it at $375 million. That is still a huge number and if the film continues to perform internationally, it will be enough to reach $1 billion worldwide.

Last minute update: The international numbers were even better than the opening day results suggested and I've increased the box office potential as a result. I'm more bullish that most, but the evidence suggests this will be one of the biggest hits of all time.

Baz Luhrmann directs The Great Gatsby. This film will likely be very stylish. On the other hand, I'm not sure how well it will do at the box office. The auteur's biggest box office hit to date was Moulin Rouge, but that came out more than a decade ago. This film does seem to have a more mainstream target audience, but it also costs $125 million, so it will likely struggle financially. It does have a shot at $100 million; after all, Leonardo DiCaprio has had six films reach the century mark, and that's not counting Titanic. With Titanic, his total domestic box office is over $2 billion. On the other hand, the biggest film of the weekend will be Iron Man 3, which should still dominate the box office. It will need to surprise analysts domestically and / or find a more receptive audience internationally if it is to break even any time soon.

Peeples is a Tyler Perry movie that is only produced by Tyler Perry, not written or directed by him. Because of this, I'm not sure if his fans will show up in large numbers. It is also the first film with Tina Gordon as director (she previous wrote the script for a couple of films), so she doesn't have a fanbase to draw upon. On the other hand, the film has a large number of talented actors in the cast, and it likely didn't cost a lot to make, so it will only need to become a midlevel hit to break even. Perhaps it will surprise and earn more than $50 million, but I think it is wise to be a little more cautious than that.

The 2009 reboot of Star Trek did very well, not only with critics but with moviegoers. The previous biggest hits in the franchise were The Voyage Home domestically and First Contact worldwide. Star Trek made more than both of those films combined. Most analysts think this film will be even bigger at the box office. There are some positive signs, including stronger buzz. This time around, the buzz is reaching beyond the Star Trek nerds to the general public. (And if you are one, that wasn't an insult. I consider myself to be a Star Trek nerd.) Also, while there are not enough reviews to judge the film, the ones we have are all positive so far. On the down side, and this is a bit of a spoiler, it ties in heavily with The Wrath of Kahn, which is the best Star Trek movie of all time. This might hurt the film more than it helps, because it won't be able to live up to that movie. Even on the low end, Star Trek Into Darkness should top its predecessor, while on the high end, it could triple its production budget domestically, meaning it would break even just on its domestic box office.

Amanda Seyfried provides the voice for Mary Katherine, a 17-year old girl living with her father in the woods. He studies tiny warriors who battle vs. evil. One day he disappears and while she is looking for him, she is shrunk down and discovers these tiny warriors and must join them in their battle.

This film doesn't have a lot of buzz, but I'm not too worried for a couple of reasons. Firstly, it's a kids movie and those tend to not have a lot of advance buzz. Secondly, there's no direct competition. The last digitally animated family film to come out was The Croods, which is already more than a month old (although still in the top five). Meanwhile, the next one coming out is Monsters University, which doesn't hit theaters for four weeks after Epic opens. There are two bigger films opening the same day, but Memorial Day long weekend is lucrative enough that I think all three films should find their respective audiences. This one will still be the smallest of the three, but earning more than $100 million domestically isn't a bad total.

After the last movie, Vin Diesel and Paul Walker and the rest of the gang are super rich, but are still wanted by the law, so they can't go home again. Dwayne Johnson approaches them and offers them a deal. They will get a full pardon, if they help catch a dangerous gang leader.

The plot really doesn't matter. All that matters is the franchise track record. Fast Five became the biggest hit in the franchise and many think this one will perform even better. It does have a better release date; however, that also means more competition. There's also a chance moviegoers have grown tired of these characters. I think the positives outweigh the negatives and this film should perform fantastically becoming the biggest hit of the weekend.

The third and final installment in the Hangover franchise. The Hangover came out of nowhere earning excellent reviews and was one of the biggest surprise hits of 2009. The Hangover 2 earned much weaker reviews and saw its box office numbers fall, but was still a massive hit. It is very likely The Hangover 3 will continue this downward trend. The real question is will its descent accelerate so much that is falls to become a $200 million hit like its predecessors? It's really hard to answer that question, because at the moment, it's a coin toss. There are not a lot of big R-rated comedies this summer, so perhaps that will be the edge it needs to get over the top. I'm not completely sold.

Set 1000 years after humans had to abandon Earth, Will Smith stars as a space ranger and Jaden Smith plays his son. The pair crash on Earth and Will is injured, so Jaden has to do the typical space ranger stuff so they can survive. Also, there's a dangerous alien.

The film is directed by M. Night Shyamalan and is based off of a story idea by Will Smith and a decade ago, that would have been incredible news. Signs was the last M. Night Shyamalan film to do really well at the box office and it came out in 2002. Will Smith has only made one film since 2008, Men in Black 3, and it wasn't really well received here. There's not a lot of buzz surrounding this film, plus most of the buzz seems to focus on how uninteresting it looks. Even so, it is still a Will Smith movie opening in summer, so it should at least get to $100 million.

A team of stage magicians performing in the States rob a bank as part of their show, a bank in Paris. This gets the FBI interested, but it will be a confusing case to crack. I love heist movies, so I'm looking forward to this film. Unfortunately, I'm not convinced it will be a big hit at the box office for a number of reasons. For instance, it's release date is weak. Also, while After Earth's buzz is not very strong, it is louder than this film's buzz is. In fact, out of all of the films opening in May, only Peeples is earning quieter buzz than this movie. I really hope it will be a surprise hit, but the evidence suggests it won't be. And with a reported $70 million production budget, it will need to be more than a midlevel hit to break even.