Most respected film schools sponsor a public showing or festival featuring student films, and industry insiders are often in attendance. Regular interaction with professors who are experts in their craft, your fellow students and knowledgeable guest speakers will provide important networking opportunities. Film students are often eligible for internships in film or television production.
Filmmaking is very much a results-oriented business — everyone wants to know what you’ve done and film school is the same. The ends really justify the means. If you make your career without film school, then you don’t need film school, but if you make your career with film school, then it served its purpose.