I really enjoyed the movie. Its not a documentary so there's no need to review or treat it like one. The after credit was hilarious to me
The acting was great, and you had to pay attention to piece together all the different shots, they're not complicated - there's just lots of them.
Going back to the after credit scene, yes the movie is liberal, it even admits it and jokes about it
If you're interested in the movie, then just watch it and get your own opinion. This is one of those movies where everyone will have their own take on it. I read the reviews before watching and didn't really agree with them at all