With Filtered Lookup you can:

• Access data from lookup lists in other webs of current site collection
• Filter and sort lookup items using target list views
• Work with dropdown list (standard lookup behavior) or resolve lookup items like in people picker field
• Preview selected lookup item in a popup window with single click without leaving the edit form
• Automatically fill your edit form fields with selected lookup item properties
• Refresh values in lookup dropdown without the need of refreshing entire edit form
• Convert built-in lookup columns to Enterprise Lookup and vice versa as they are 100% compatible!