The main character and the French(?) woman are actually good on acting, but the main character's father has a poor acting. The movie does not have any visual effects at all (just the machine) and it tries to tell a time travel story. The main idea is good, but it could've been directed better with a stronger script. Not a bad movie at all, didn't disappoint me; but I expected it to be more dynamic, since it is a time travel movie and promises action.