In Theaters This Week: Check out movie trailers for 'Transformers: Age of Extinction,' 'They Came Together,' and more coming to a big screen this weekend!

This weekend marks the epic return of Michael Bay to the big screen. Transformers: Age of Extinction is looking to take the box office glory home, but there are a few other movies that are coming out this weekend that should worry the filmmaker. Let's take a look at some trailers for the new Transformers movie as well as Snowpiercer, They Came Together, and Begin Again!

Though we already got three action-packed films from the Transformers franchise, director Bay hopes to blow us away with Age of Extinction this weekend. This time around Mark Wahlberg takes on some robotic alien foes with the help of Optimus Prime and his Autobots, and it looks like the human race could be wiped out!

Watch a trailer here!

Perhaps the biggest competition in the action realm for Transformers 4 is Snowpiercer, a sci-fi movie about an ice age in the future that forces human remain in a super-train that constantly circles the globe. The train cars are relegated to class and an uprising is underway.

Watch an exciting trailer HERE!

Moving into the romantic comedy genre, Begin Again offers theatergoers a great date movie! Keira Knightley and Mark Ruffalo star in this music-centric story about a former record executive attempting to mold a young singer-songwriter into a star.

Watch a trailer right here!

They Came Together is a parody on romantic comedies, so it's fitting we talk about it now! With Amy Pohler and Paul Rudd leading this comedy, we should expect some hilarity in theaters this weekend!

Watch a trailer for They Came Together here!

What movie will you see in theaters this weekend?