Question: Did John Belushi do all the dancing, especially the turnovers in church, by himself or was it a double?
Question: When Bluto was meeting in private with Wimpy, what were they talking about?
Answer: One, Bluto is a bully and threatened him, after all his name is Wimpy. Plus he most likely offered to buy him a hamburger, which he would have paid next Tuesday.
Answer: How did Bluto convince Wimpy to do it?
Answer: To grab Swee'pea, while everyone was cheering Popeye for dunking the Tax Collector.
Answer: It was a double, and the "making of" documentary on the DVD shows this.
David Mercier
To be fair, John did do a lot of flips and dancing as Jake; just not all of them in the movie.