Q about streetlight/flash combo photos

Hi,

Im starting a series of outdoor urban fashion photos (probably all in color film) and I was wondering if theres a way to let some of the street lights/colors from neon signs fill in the shot and the flash just lighting up the model enough without washing them out and losing all the gorgeous colors.

I use a crappy flash that doesn't have many settings.

Also which speed of film is the best for what im trying to accomplish?

Thanks in advance, you guys rockkkk

Lisa

Longer shutter speed will let the ambient light in. You could let the flash handle the foreground and meter for the background.