Yes, for example, you can wrap butts in plastic wrap and then in foil and continue to cook low and slow. I guess there are a number of theories...plastic retains moisture, plastic doesn't react like aluminum foil, etc. I tried it once but never again.
Most plastic wraps are good to about 220 or even 250*F. They get brittle at those temps. If the plastic touches meat or fat that gets hotter than that, it will melt.
Regards,
Chris