The character of George Bailey also attempts to commit suicide by jumping off of a bridge. Before he has the chance to do so, his guardian angel jumps into the water, compelling Bailey to save him. The angels in both movies subsequently attempt to save the main character from their misery.
"Is this 'Candid Camera'?"
"I'll make him an offer he can't refuse."
The restaurant scene in which Angela proves that she is really an angel uses the same angles as the dinner scene with Uma Thurman and John Travolta.
André says "And stop saying "okay" all the time. Okay?", to which Angel replies "Okay". This is an exact quote from Léon.
In both movies the main characters say "I love you" to their own reflection on a slow zoom-in shot.
Angela uses the phrase "Not my department" which Michael used repeatedly. Then the camera follows a float white feather and Angela asks "Is it me losing my feathers?" which was also a theme in Michael.