I think I have seen every example of the "body switch" genre, at least all of those that have been made in the past 40 years or so, and "Like Father Like Son" is the worst of them. The first 20 minutes or so are painless mediocrity, but then soon after the movie collapses. What's the problem? I think the main problem is that the characters are stupid. If I was in their situation, I know I would be terrified and trying my best to not raise suspicion. If the movie had done that, it could have been funny seeing these people trying to do their best but making mistakes. But the movie's two main characters seem to be trying their best to blow the charade - not realistic. And the movie's sense of humor is really bad - we have such stuff as audiences falling asleep during lectures, a gag that's done TWICE. If you want to see a good example of this genre, see "Freaky Friday" (the original or the remake) or "Vice Versa".
