Trivia: When Larry tries to prove that they were married before, Ellen asks him to name the song playing on the radio when she was ticketed as a teenager. The song was "Give Me Some Loving," a song done many times by the Blues Brothers, initially starring Jim Belushi, but a role James took on after Jim's death.
Trivia: Ellen Robertson's dog is named Hercules. Hercules was the name of Arnold Schwarzenegger's character in his first movie, and Arnold also starred with Linda Hamilton (who played Ellen Robertson/Burrows) in The Terminator and Terminator 2. This was done again in Terminator 3: Rise of The Machines which had a scene with a cat named Hercules. (01:02:50 - 01:11:25)
Answer: Mike, as advertised, was Mr. Destiny. When Jim Belushi asked him if he was an angel, Mike replied that when Belushi is about to make a decision, he's the little voice in his head that helps. At the end of the film, when Mike tells the teenage Belushi that everything is going to work out, the kid replies, "What do you know?"