An eclectic compromise between writing numbers as words and writing them as digits, initiated, or at least popularised, by David Fincher's psychological thriller "Se7en" (1995). In this case, the number 7 is substituted for the letter V, because of the latter's resemblance to the former turned through 90º. This gimmick has been emulated by a few other products of popular culture, with increasing ridiculousness. To date:

To be updated as more examples of this phenomenon emerge.

1. call suggests that "Fi5e" makes sense enough because V is, of course, 5 in Roman numerals. He tells me that this idea was stolen from the character da5id in Neal Stephenson's Snow Crash.