I didn't read the book by Donny Dhirgantoro, but I watched this movie last night with Nandana and I liked it. You gotta check out this movie because:

1. The long years of friendship between boys and girls,
2. The magnificent scenery of Semeru Mount and the adventure of climbing it,
3. The love lost and found along the journey,
4. The nationalism spirit for Indonesia and its richness,
5. The acting of the casts are pretty good for Indonesian.