When Brendan Fraser comes out of the Louvre, the Eiffel Tower is right in front of it. The Louvre and the Eiffel Tower are miles away from each other.
In the casino, while D.J. is fighting with Yosemite Sam's goons, Daffy tells him to "bite his ear." This is a reference to boxer Mike Tyson, who bit off a portion of Evander Holyfield's ear during a match.