 Towards the end of the film, when Rusty and Danny are in the  airport, they each mock each other. Rusty tells Danny to try and  keep the weight off in between jobs next time. This is a reference  to George Clooney (qv), who put on extra weight for his role in  _Syriana (2005)_ (qv) and in turn injured his back doing some  stunts. Danny tells Rusty, "Settle down and have a couple of kids,"  which is a reference to Brad Pitt (qv) and Angelina Jolie (qv)s  relationship and children.