This week my guest is Joshua Caldwell [32:30], director of the new movie (premiering in theaters today) "Mending the Line", about a combat veteran with PTSD who works his way back into society with the help of a fly fishing curmudgeon. The movie stars Sinqua Walls, Perry Mattfeld, and Brian Cox as the old curmudgeon (of course). It's a story that could easily fall into cliche but I found it to be heartwarming and compelling, and the casting is excellent. Joshua talks about the trials and tribulations of making the movie in a short time frame, challenged by tough weather. It's a fascinating peak behind the curtains of an independent film.

In the Fly Box this week we have the following questions and helpful tips:

What is your opinion of an approved IGFA leader for tarpon as opposed to using straight 60- or 80-pound leader?

I am having trouble with the partridge hackle on size 20 soft hackle wets. Can you help?

How much time should I spend in each little pocket when bluelining?

I have a Recon Saltwater 7 and I want to get a 7-weight freshwater version. How much difference is there between the two?

Will a black bottom on my boat spook fish in shallow water?

A great letter from a fly fisher in Switzerland detailing how to negotiate the tricky fishing regulations in his country

Can I use a tippet ring with different tippet sizes, even ones that are quite different in diameter?

Do stocked trout move as much as a mile, or do they stay close to where they are stocked?