I LOVE the documentaries that are really "mockumentaries." "Best In Show" takes on the dog show circuit and the owners. Another is an oldie but a goodie, "Take The Money and Run." Woody Allen plays a bumbling criminal.
Two other favorites are Mel Brooks' "Young Frankenstein" and "High Anxiety."
The Pink Panther movies and some of Woody Allen's movies, especially Everything You Wanted to Know About Sex.
More recently, the only thing that made me laugh hard was the TV cartoon, Rick and Morty. Rick is like a drunken Dr. Who who takes his grandson, Morty, on dangerous adventures in time, space, different dimensions, alternate realities, etc..
Nothing wrong with that! Most iconic 80s movies were films I never saw until years later, including the BTTF trilogy, despite being at the perfect, eh, demographical age for all of them when they were released. (I lived on the outskirts of town and didn't get to see a lot of films growing up.)
But I've since seen all three BTTF films, and while I'd fail at any trivia about them, great Scott!, I certainly enjoyed them. I really liked the one set mostly in the Old West. I remember reading, at the time, they filmed the two BTTF sequels back to back, which was a first...and one or two other film franchises followed this lead.
The Heat, Bridesmaids, Identity Thief, Along Came Polly, Just Go With It, Meet The Fockers, Big Daddy, Home Alone 1 & 2, Elf, Daddy’s Home 1 & 2, Miss Congeniality, The Proposal, Cheaper By The Dozen 1 & 2, Father Of The Bride; and Vacation x 3
Others have said — I think including Mel Brooks himself — that "Blazing Saddles" could never get made today. And they're probably right. I don't possess the gray matter or articulateness to discuss it intellectually but I think, currently, with a very diverse audience, it would still have everyone laughing out loud in spite of themselves and leaving the theater in a very good mood.
"Young Frankenstein," absolutely! There's a million quotable lines in that. "He vas my boyfriend!"
Love most of the Christopher Guest movies as well. "Best In Show" is fun, especially Fred Willard's obnoxious judge character who knows nothing about dogs. Well, Fred Willard in pretty much all of Guest's stuff, usually playing the same basic jackass! His "just a thought" scene in "A Mighty Wind" always kills me.
I think my favorite Guest film is "Waiting for Guffman," though.