Help on modern languages?

I'm an 18 year old South African and I need to learn a new language (from scratch) over the next 2 year to apply for college. I have to chose between Spanish, German French and Russian (have to take them at A-Level after wards) then I can choose to learn conversational Italian, Portuguese, and Modern Greek if I want to. I also have an option of learning Celtic and Czech. I have a maximum of 28 months to learn one of them. I speak English fluently as a second language and moderate Afrikaans and Tswana (one of the official languages of SA) is my first language. I am also a film student so i want a language that, not only will I learn quite easily, but one that I can use better as an artist.