La gran aventura (1969) - Big Adventure – Mexican movie part 1

Second part is here https://www.dailymotion.com/video/k3rByOG4thlnD6xg88S

The entire film is a fast-paced adventure that begins practically immediately. One youngster goes from Acapulco to Mexico City with his mother and dog to the Basilica of Our Lady of Guadalupe, while the other boy flies from Spain to the Basilica with his parents and pines for his dog who was left in Spain. The dog is thrown out of the Basilica while the moms are praying with their eyes closed, and both boys follow after him. The moms have no idea what happened to their sons when they open their eyes and learn they are missing, let alone that a second boy is also missing. From this point forward, the action picks up. The boys are continually on the run for the rest of the film, at least figuratively if not practically, chasing the dog and avoiding problems. The dog makes troubles, the boys make troubles, and sometimes they just think trouble, but there is always trouble to flee from.
Language: Spanish. Subtitles: English, German, French, Portuguese