The actor who plays Banshee, Jeremy Ratchford, also voiced Banshee on the '90s X-Men cartoon.
The mansion used for the Xavier Institute is Hatley Castle, which was also used as Xavier's school in the films X-Men (2000), X2 (2003), X-Men: The Last Stand (2006), X-Men: Days of Future Past (2014), Deadpool (2016) and X-Men: Apocalypse (2016). However, each of the feature films also used various other locations to portray parts of the school. Hatley Castle also served as the Luthor family mansion on the television series Smallville (2001) and as the Queen family mansion in early seasons of the television series Arrow (2012).
The characters of Buff and Refrax were created especially for the movie. Characters such as Chamber and Penance were left out because the SFX needed to portray them would have raised the budget too high.
When Jubilee is in the arcade, there is an X-Men video game visible. Also, during another scene, one of the characters is wearing a Wolverine t-shirt.
Pilot movie for a TV show that never caught on.