Factual error: The establishing shot of Shaw's boat says they're in Miami. Yet in the scene, we see a very large suspension bridge in the background. The bridge is the St Simons Bridge leading from Brunswick to St. Simons, Georgia.
Trivia: When Raven is making a pass at Erik in his bedroom he brushes her off by saying that she would need to be a little older. She then makes herself look older - this older woman is Rebecca Romijn, who played Mystique in the original 3 X-Men films.
Trivia: In the bar, when Wolverine dismisses Xavier's offer to join him, Hugh Jackman ad-libbed the line "go f*** yourself." The line was originally written "F*** off." Later, in "Days of Future Past", Xavier remembers the line as "F*** off", not "go f*** yourself." (00:48:15)