A bicycle and a wheelchair were used as camera dollies on this film.
One of two movies directed by Monte Hellman and starring Jack Nicholson, that were shot on-location in the Philippines in 1964. The other being Back Door to Hell (1964).
According to the DVD this is one of Jack Nicholson favorite movie of his before he found fame in Easy Rider.
One of two films written by Jack Nicholson starring Fay Spain. The other is Thunder Island. He acts in this movie but not in that one.