1) Get rid of the brown and orange combo - too 70's, and the orange doesn't work well with the orange lines of the map;
2) Move the map to the middle and have your results in a column on the right;
3) On the left, have a column for inputting the location data, have a clickable calendar to select a date, and have a slider bar so you can increase or decrease the "within" search area (or perhaps something like a target board where the middle is the location you put in and you click on an outer ring to widen your "within" area);
My personnel design philosophy is: reduce the number of clicks - that is, always try to reduce the number of clicks a user has to do to get the information they want. E.g. for the "within" drop down menu: one click to get to to drop down and another to select the option; a slider is one click to zoom in or out. Having a calendar already on screen removes the need to try and use the pop-up one, which again reduces the number clicks from a hover and click to just one. However, where you have lots of options, such as the genres, I think you still need a drop down menu because there are two many options to list....unless you put them all in some sort of bar. Don't know. Try it.
Anyway, I hope that made sense and helps. Good luck.